14249640 has 32 divisors (see below), whose sum is σ = 42749280. Its totient is φ = 3799872.

The previous prime is 14249617. The next prime is 14249647. The reversal of 14249640 is 4694241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 14249598 and 14249607.

It is not an unprimeable number, because it can be changed into a prime (14249647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59254 + ... + 59493.

It is an arithmetic number, because the mean of its divisors is an integer number (1335915).

Almost surely, 2^14249640 is an apocalyptic number.

14249640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14249640 is an abundant number, since it is smaller than the sum of its proper divisors (28499640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14249640 is a wasteful number, since it uses less digits than its factorization.

14249640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118761 (or 118757 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 14249640 is about 3774.8695341694. The cubic root of 14249640 is about 242.4383376716.

The spelling of 14249640 in words is "fourteen million, two hundred forty-nine thousand, six hundred forty".